/*
 * This file is part of aion-engine <aion-engine.com>
 *
 * aion-engine is private software: you can redistribute it and or modify
 * it under the terms of the GNU Lesser Public License as published by
 * the Private Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * aion-engine is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser Public License for more details.
 *
 * You should have received a copy of the GNU Lesser Public License
 * along with aion-engine.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.aionengine.gameserver.model.team2.alliance.events;

import com.aionengine.gameserver.model.gameobjects.player.Player;
import com.aionengine.gameserver.model.team2.TeamEvent;
import com.aionengine.gameserver.model.team2.alliance.PlayerAlliance;
import com.aionengine.gameserver.model.team2.alliance.PlayerAllianceMember;
import com.aionengine.gameserver.model.team2.alliance.PlayerAllianceService;
import com.aionengine.gameserver.model.team2.common.legacy.PlayerAllianceEvent;
import com.aionengine.gameserver.network.aion.serverpackets.SM_ALLIANCE_MEMBER_INFO;
import com.aionengine.gameserver.network.aion.serverpackets.SM_SYSTEM_MESSAGE;
import com.aionengine.gameserver.utils.PacketSendUtility;
import com.google.common.base.Preconditions;
import com.google.common.base.Predicate;

/**
 * @author ATracer
 */
public class PlayerDisconnectedEvent implements TeamEvent, Predicate<PlayerAllianceMember> {

    private final PlayerAlliance alliance;
    private final Player disconnected;
    private final PlayerAllianceMember disconnectedMember;

    public PlayerDisconnectedEvent(PlayerAlliance alliance, Player player) {
        this.alliance = alliance;
        this.disconnected = player;
        this.disconnectedMember = alliance.getMember(disconnected.getObjectId());
    }

    /**
     * Player should be in alliance before disconnection
     */
    @Override
    public boolean checkCondition() {
        return alliance.hasMember(disconnected.getObjectId());
    }

    @Override
    public void handleEvent() {
        Preconditions.checkNotNull(disconnectedMember, "Disconnected member should not be null");
        alliance.apply(this);
        if (alliance.onlineMembers() <= 1) {
            PlayerAllianceService.disband(alliance);
        } else {
            if (disconnected.equals(alliance.getLeader().getObject())) {
                alliance.onEvent(new ChangeAllianceLeaderEvent(alliance));
            }
        }
    }

    @Override
    public boolean apply(PlayerAllianceMember member) {
        Player player = member.getObject();
        if (!disconnected.getObjectId().equals(player.getObjectId())) {
            PacketSendUtility.sendPacket(player, SM_SYSTEM_MESSAGE.STR_FORCE_HE_BECOME_OFFLINE(disconnected.getName()));
            PacketSendUtility.sendPacket(player, new SM_ALLIANCE_MEMBER_INFO(disconnectedMember,
                    PlayerAllianceEvent.DISCONNECTED));
        }
        return true;
    }

}
